Re: [charmod-norm] Canonically equivalent but may have different appearance. from Richard57 via GitHub on 2018-05-10 (public-i18n-archive@w3.org from April to June 2018)

From: Richard57 via GitHub <sysbot+gh@w3.org>
Date: Thu, 10 May 2018 19:42:32 +0000
To: public-i18n-archive@w3.org
Message-ID: <issue_comment.created-388163247-1525981351-sysbot+gh@w3.org>

If it is a broken font, it is compliant with the Unicode standard.  The renderer would only be non-compliant if it deliberately rendered them differently.  However, I would say that sensitivity to the codepoint sequence means it is not correctly displayed for all canonically equivalent forms.

However, there is one major problem with this approach.  Following the example of the Unicode standards, compatibility ideographs are often rendered differently to their canonical equivalents, e.g. 金 U+F90A CJK COMPATIBILITY IDEOGRAPH-F90A v. 金 U+91D1 CJK UNIFIED IDEOGRAPH-91D1.  Rendering them the same would be inferior, as many pairs are distinguished in a national standard.  This is a problem with the Unicode model.  The modern resolution to this mess is to use variation sequences. 

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Received on Thursday, 10 May 2018 19:42:34 UTC